Year	current US$
1970	9689999.932423236
1971	7810000.203549866
1972	10280000.01050532
1973	11190000.114962455
1974	15689999.71821904
1975	27080000.13232227
1976	22730000.142008062
1977	17580000.065267097
1978	25090000.534430142
1979	36880000.13120469
1980	38030000.16696749
1981	38419999.6720999
1982	43229999.22558665
1983	51120000.50954521
1984	46160000.499337904
1985	45680000.7019192
1986	52189999.05884269
1987	97049999.72134826
1988	115600001.16564333
1989	107560001.73836942
1990	122340001.31674102
1991	225550002.07014385
1992	216770000.58628622
1993	209230000.26680526
1994	211499998.0814755
1995	213080000.9369851
1996	251789999.5446204
1997	188399999.7954815
1998	205169999.18594956
1999	277350000.32745296
2000	217219999.54245976
2001	211519999.17440116
2002	242700000.88028628
2003	307189998.9843368
2004	310460002.32174987
2005	464210001.1184813
2006	318250004.50946385
2007	253290000.68642202
2008	358900002.77571374
2009	260070001.0415168
2010	266849999.10928297
2011	344850001.42455095
2012	343270001.56231236
2013	434589997.7404624
2014	469980006.26266015
2015	498010001.09501195
2016	471800000.39748853
2017	449889999.68022114
2018	445729998.7748264
2019	459980002.37159425
2020	498699997.33008426
2021	531849996.36374414
2022	676020001.3574216